Remux vs ffmpeg

Convert videos to 20+ formats, compress to save storage, extract audio, create GIFs, and edit — all on your device, with no uploads or cloud processing. CONVERT TO ANY FORMAT MP4, MOV, MKV, WebM, AVI, WMV, FLV, MPG, 3GP, M4V, F4V, TS, MTS, OGV, GIF — plus audio formats MP3, M4A, WAV, AIF, and FLAC. Supports H.264, H.265/HEVC, VP9, AV1, MPEG-2, AAC, Opus, FLAC, and more codecs than any other mobile converter. SPACE SAVER — FREE UP STORAGE Automatically scans your photo library for large videos and compresses them in place. Choose light, medium, or heavy compression. See estimated savings before you start. Resume interrupted sessions right where you left off. QUICK ACTIONS One-tap shortcuts for the most common tasks: Trim, Crop, Rotate, Flip, Remove Audio, Extract Audio, Create GIF, Compress, Add Subtitles, and Watermark. POWERFUL VIDEO EDITOR • Trim & cut videos with frame-accurate preview • Crop to any aspect ratio • Rotate and flip • Change resolution (up to 4K) and frame rate (up to 300 fps) • Burn subtitles (SRT, ASS, VTT) with custom styling • Add text or image watermarks with opacity, shadow & blur • Adjust or remove audio, select audio tracks VIDEO COMPRESSOR Reduce video file size without visible quality loss. Fine-tune with CRF, bitrate, codec profiles, and pixel formats — or let a preset handle it. 25+ PRESETS — NO GUESSWORK Optimized presets for Final Cut Pro, After Effects, iMovie, and InVideo. Compression presets at light, medium, and heavy levels. Resolution presets from 4K down to 144p. Speed-optimized and quality-first options. HDR support. BATCH CONVERT & COMPRESS Import multiple videos and convert or compress them all at once with the same settings. Apply to All with one tap. GPU-ACCELERATED Hardware encoding via VideoToolbox for significantly faster conversions on supported devices, with automatic software fallback. LIVE ACTIVITY (iOS) Track conversion progress right on your lock screen. See the current file, total progress, and output format without opening the app. EXTRACT AUDIO FROM VIDEO Pull audio from any video as MP3, M4A, WAV, AIF, or FLAC. Perfect for saving music, podcasts, or voiceovers from video files. VIDEO TO GIF Convert any video clip to an animated GIF — ideal for social media, messaging, and memes. PRIVACY FIRST Every conversion happens on your device. Your videos are never uploaded anywhere. AVAILABLE IN 9 LANGUAGES English, Spanish, French, Portuguese, Arabic, Hindi, Korean, Russian, and Chinese. --- Free version includes single-file conversion, basic editing, audio extraction, and GIF creation. Upgrade to Pro for batch processing, all formats, advanced editing (crop, rotate, watermark, subtitles), 25+ presets, 4K export, and unlimited Space Saver. This app uses FFmpeg (ffmpeg.org). Source code: https://remux.app/source Privacy Policy: https://remux.app/privacy_policy Terms and Conditions: https://remux.app/terms_and_conditions

FFmpeg Workbench is a local audio and video processing tool that runs on iPhone and iPad, suitable for users who need to perform video to audio conversion, audio format conversion, video compression, clip cropping, volume adjustment, and media information viewing. If you have any questions during use, please contact us at 2524931333@qq.com The App has a built-in FFmpeg command-line workbench. You can import videos, audios or folders in the app sandbox workspace and process files using FFmpeg commands similar to those on the desktop. For instance, extract MP4 videos to MP3 audio, convert audio to WAV, compress video size, crop specified segments, or use ffprobe to view file encoding, duration, resolution, bit rate and other information.